Polyurethane resin forming compositions for use in sealing membrane module

A technology of polyurethane resin and sealing material, which is applied in the field of polyurethane resin-forming composition to achieve the effects of less leaching, low viscosity and excellent injection molding properties

Active Publication Date: 2014-10-22
SANYO CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of using the conventional polyurethane resin-forming composition, when the cut ends are observed, there are steps (concavities and convexities) between the height of the apexes of the hollow fibers and the bottom surface of the polyurethane resin existing between the hollow fibers.

Method used

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  • Polyurethane resin forming compositions for use in sealing membrane module
  • Polyurethane resin forming compositions for use in sealing membrane module
  • Polyurethane resin forming compositions for use in sealing membrane module

Examples

Experimental program
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Embodiment

[0088] Hereinafter, the present invention is further illustrated by examples, but the present invention is not limited thereto. Hereinafter, parts represent parts by weight, and % represents % by weight.

[0089] The trade names used as raw materials and their compositions are as follows.

[0090] ・"HS2P-080": Castor oil fatty acid ester polyol of castor oil fatty acid and PPG [manufactured by Toyokuni Oil Co., Ltd., hydroxyl value = 84 mgKOH / g, Mn = 1,340]

[0091] · "Sunnix PP-1000": PPG [manufactured by Sanyo Chemical Industry Co., Ltd., hydroxyl value = 112 mgKOH / g, Mn = 1,000]

[0092] "HS2G-120": partially dehydrated castor oil [manufactured by Toyokuni Oil Co., Ltd., hydroxyl value = 120 mgKOH / g, Mn = 935]

[0093] "ELA-DR": castor oil [manufactured by Toyokuni Oil Co., Ltd., hydroxyl value=160 mgKOH / g, Mn=945]

[0094] "CO-FA": castor oil fatty acid [manufactured by Toyokuni Oil Co., Ltd., hydroxyl value=163 mgKOH / g, Mn=315]

[0095] "MILLIONATE MT": 4,4’-MDI [Nipp...

manufacture example 1

[0102] Production Example 1 [Manufacture of polyether polyol]

[0103] 150 parts of propylene glycol and 0.09 parts of tris(pentafluorophenyl)borane were added to a stainless steel autoclave equipped with a stirring device, a temperature control device, a heat exchanger as a condensing device, a raw material supply line, and an exhaust line, and then, the The reaction temperature is controlled and maintained at 70-80°C, and at the same time, 290 parts of PO2 are continuously fed into the liquid phase within 12 hours. After aging at 70° C. for 4 hours, 200 parts of water were added and heated at 130 to 140° C. for 1 hour. After heating for 1 hour, the water was distilled off under normal pressure for 2 hours, and then the pressure was kept at 4-7 kPa while passing water vapor, and the residual water and low boiling point compounds were distilled off under reduced pressure for 3 hours. After that, 30 parts of synthetic silicate ["KYOWAAD600" manufactured by Kyowa Chemical Indus...

manufacture example 2

[0104] Production example 2 [manufacture of organic polyisocyanate component (A-1)]

[0105] Put 29 parts of "HS2P-080" and 16 parts of "MILLIONATE MT" into a reaction vessel equipped with a stirrer, a thermometer, and a nitrogen introduction tube, stir under nitrogen flow, and heat to 70-80°C while reacting for 4 hours to obtain terminal isocyanate based polyurethane prepolymers. After the reaction, 34 parts of "Lupranate MM-103" and 21 parts of "Lupranate MI" were added, stirred and mixed uniformly for 30 minutes, and the organic polyisocyanate component (A-1) was obtained. (A-1) had an NCO content of 20.6%, and a viscosity of 400 mPa·s / 25°C.

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Abstract

The purpose of the present invention is to provide polyurethane resin forming compositions which are for use in sealing a membrane module and exhibit excellent curability and castability and low turbidity and which can ensure excellent flatness of a cut section when used as a sealing material for a membrane module and which can form a polyurethane resin that is less susceptible to elution. The present invention provides two polyurethane resin forming compositions which are for use in sealing a membrane module, namely, a polyurethane resin forming composition which comprises a chief material that contains (A) an organic polyisocyanate component and a curing agent that contains (B) a polyol component and which is characterized in that the chief material and/or the curing agent contains (C) a bicyclic amidinium salt represented by general formula (1), and a polyurethane resin forming composition which is characterized by comprising a chief material that comprises (A) an organic polyisocyanate component, a curing agent that comprises (B) a polyol component, and (C) a bicyclic amidinium salt represented by general formula (1).

Description

technical field [0001] The present invention relates to a polyurethane resin-forming composition for a sealing material of a membrane module, and more particularly to a polyurethane resin-forming composition for a sealing material of a membrane module suitable for use as a sealing material of a blood processor or a water purifier. Background technique [0002] As a polyurethane resin-forming composition for a sealing material of a membrane module, it is known to use, for example, a mixture of a castor oil-based polyol and N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine as a polyol Components (see, for example, Patent Document 1). [0003] In recent years, in order to improve the productivity of blood processors and water purifiers, rapidly curing polyurethane resin-forming compositions for sealing materials have been desired. However, in order to obtain fast curing, it is necessary to increase the content of N,N,N',N'-tetra(2-hydroxypropyl)ethylenediamine, which is due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/00A61M1/18C08G18/20C09K3/10
CPCC08G18/7664C08G18/797C08G18/2063C09K3/1021B01D65/003B01D63/023C08G18/4825C08G18/36
Inventor 住友优子岛田哲也
Owner SANYO CHEM IND LTD
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